a^{c1,v1}_{c0,a0} b^{c2,a1}_{v0,v1} c^{}_{} gamma1^{a0}_{a1} a+(c0) a+(v0) a-(c2) a-(c1)
+1/2 a^{c0,v0}_{c1,a0} b^{c1,a1}_{v1,v2} c^{}_{} gamma1^{a0}_{a1} a+(v1) a+(v2) a-(v0) a-(c0)
+a^{c0,v1}_{c1,a0} b^{c1,a1}_{v0,v1} c^{}_{} a+(a0) a+(v0) a-(a1) a-(c0)
-a^{c0,v1}_{c1,a0} b^{c1,a1}_{v0,v1} c^{}_{} gamma1^{a0}_{a1} a+(v0) a-(c0)